From the Rolls-Royce experimental archive: a quarter of a million communications from Rolls-Royce, 1906 to 1960's. Documents from the Sir Henry Royce Memorial Foundation (SHRMF).
Instructions detailing the construction specifications for an armature circuit.
| Identifier | ExFiles\Box 36\4\ scan 083 | |
| Date | 19th July 1920 | |
| RR 300 (120B) (SF 349 24-1-19) MP 200552 91133 ROLLS-ROYCE LIMITED. INSTRUCTIONS. To: E.F.C. Order No: P.A.2. Customer's No. Re: X 3014b Date: July. 19th 1920. Armature Circuit. (Cont'd.{John DeLooze - Company Secretary}) .018" dia. (26 S.W.G.) with the turns soldered together, to a width of .35 inches to keep the coils in the slots. There are 87 laminations of an average thickness of .030 inches, insulated from each other by what appears to be a coating of shellac varnish giving an iron efficiency of .966. These are clamped between a 3/4" hexagonal nut, running on the shaft, and a fixed flange, an insulator of red fibre, .105" thick, and a core plate intervening at each end. The insulation over core-plate Signed: Cont'd.{John DeLooze - Company Secretary} This Sheet must be filed on completion of the work. | ||